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8.0 Magnitude Earthquake Near Samoa ( 2009). Reading for next Wednesday – Chapter 7 (all) Homework 6 – Due WEDNESDAY 10/1/14 Chapter 6 #s 8, 10, 12, 22, 26, 30, 32, 34, 36, 48, 50, 54, 58, 60, 63, 64, 71-74 (all ) ( only chap 6 assignment ) Homework 7.1 – Due Monday 10/6/14

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8 0 magnitude earthquake near samoa 2009
8.0 Magnitude Earthquake Near Samoa (2009)

  • Reading for next Wednesday – Chapter 7 (all)

  • Homework 6 – Due WEDNESDAY 10/1/14

    • Chapter 6 #s 8, 10, 12, 22, 26, 30, 32, 34, 36, 48, 50, 54, 58, 60, 63, 64, 71-74 (all) (only chap 6 assignment)

  • Homework 7.1 – Due Monday 10/6/14

    • Chapter 7 #s 1-8 (all), 13-29 (all), 31-39 (all), 41-44 (all)

  • Homework 7.2 – Due Wednesday 10/8/14

    • Chapter 7 #s 45-56 (all), 58, 61, 62, 71, 72, 74


Classification of ions
Classification of Ions

  • Below is a flow chart for the classification of ions.


Monoatomic cations
Monoatomic Cations

  • Metal atoms can lose valence electrons and become positively charged cations.

  • Cations are named for the parent atom followed by the word “ion.”

    • Na+ is named “sodium ion”

    • Al3+ is named “aluminum ion”


Metals that form multiple ions
Metals That Form Multiple Ions

  • If a metal can form more than one cation, it is named for the parent, followed by the charge in Roman numerals in parentheses, followed by the word “ion.”

    • Fe2+ is the iron(II) ion

    • Fe3+ is the iron(III) ion


Monoatomic anions
Monoatomic Anions

  • Nonmetals can gain valence electrons and become negatively charged anions.

  • Monoatomic anions are named by dropping the end of the element name and adding the suffix –ide.

    • Br- is the bromide ion

    • O2- is the oxide ion

    • N3- is the nitride ion


Did you get it
Did you get it?

Element

Valence e-

Ion charge

Ion name

iodine

7

-1

iodide

aluminum

3

+3

aluminum ion

phosphorus

5

-3

phosphide

barium

2

+2

barium ion


Summary of ions the letters

2+

Be

Summary of Ions (the letters)

Monatomic ions

  • Some charges can be predicted based on group number


Summary of ions the letters1
Summary of Ions (the letters)

Monatomic ions

  • Some charges can be predicted based on group number

  • Cation name is the same as element name with ion added

    element: zinc (Zn) ion: zinc ion (Zn2+)

    element: cesium (Cs) ion: cesium ion (Cs+)

  • Anion name changes ending of element name to ide

    element: nitrogen (N) ion: nitride (N3-)

    element: iodine (I) ion: iodide (I-)


Summary of ions the letters2
Summary of Ions (the letters)

Poly

atomic

ion

Poly: more than one or many

atomic: atoms

ion: a positively or negatively charged particle

Almost always anions (three exceptions)

ammonium -- NH4+

mercury (I) -- Hg22+

hydronium – H3O+


Summary of ions the letters3
Summary of Ions (the letters)

Variable Oxidation State metals

  • Charge can NOT be predicted based on periodic table

(ALMOST)

ANYTHING IN HERE CAN BE A VOS


Summary of ions the letters4
Summary of Ions (the letters)

Variable Oxidation State metals

  • Charge can NOT be predicted based on periodic table

  • Can assume multiple ion charges

    non VOS metal – potassium ion = K+

    VOS metal – lead ion = Pb2+ or Pb4+

  • The charge of VOS metals MUST be indicated in the name with the use of roman numerals

    Pb2+ = lead (II) ion Pb4+ = lead (IV) ion


Summary of ions the letters5
Summary of Ions (the letters)

Practice: Give the name of the ION of each of these elements

rubidium

oxygen

cadmium

carbon

rubidium ion

oxide

cadmium ion

carbide

selenium

phosphorus

fluorine

lithium

selenide

phosphide

fluoride

lithium ion


Summary of ions the letters6
Summary of Ions (the letters)

Practice: Give the name OR symbol for these ions:

tin (II) ion

S2-

Fe3+

copper (I) ion

Sn2+

sulfide

iron (III) ion

Cu+

Mg2+

bromide

Mn4+

Ag+

magnesium ion

Br-

manganese (IV) ion

silver ion


8 0 magnitude earthquake near samoa 2009

Na

F


8 0 magnitude earthquake near samoa 2009

Na

F


8 0 magnitude earthquake near samoa 2009

Na

Na+

F

F-

sodium ion

fluoride ion

fluoride ion


Let s bond
Let’s bond

Bond:

  • Ionic

  • Ionic: Pertaining to or occurring in the form of ions

  • Bond: something that binds, fastens, confines, or holds together

  • Must be both a cation and an anion present

  • Total charge is zero


Let s bond1
Let’s bond

  • Formula Unit:

    • An individual unit formed by the union of two or more ions (huh?)



8 0 magnitude earthquake near samoa 2009

Ca

Ca2+

Cl-

Cl

Cl-

Cl

chlorine

chloride

formula unit made up of 1 Ca2+ and 2 Cl-

CaCl2



Nomenclature the words1
Nomenclature (the words)

  • Ionic Compounds

    • MUST contain either a metal or ammonium (NH4+)

    • MUST be neutral (no overall charge)

Ionic Compounds:

NaCl

(NH4)2SO3

Al(NO3)3

NOT Ionic Compounds:

CO2

HPO42-

PCl3



Nomenclature the words3
Nomenclature (the words)

  • Molecular Compounds

    • MUST contain only nonmetals

    • MUST be neutral (no overall charge)

P2Br5

C6H12O6

NH3

Molecular Compounds:

AlCl3

SO42-

NH4NO3

NOT Molecular Compounds:



Nomenclature the words5
Nomenclature (the words)

  • Aqueous Acids

    • MUST begin with at least one hydrogen

    • MUST end with a subscript (aq)

    • MUST be neutral (no overall charge)

Aqueous Acids:

H3AsO4(aq)

HC2H3O2(aq)

HF(aq)

NOT Aqueous Acids:

LiBr(aq)

HCl

NH3(aq)

HCl(aq)


Nomenclature the words6
Nomenclature (the words)

Practice: State whether these are ionic, molecular, or an acid

HC7H6O3(aq)

Zn3P2

(NH4)2Se(aq)

CCl4

acid

ionic

ionic

molecular

HBr(aq)

CH2I2

H2CrO4(aq)

SrO

acid

molecular

acid

ionic



Ionic nomenclature the words
Ionic Nomenclature (the words)

name to formula

Step 1: write the symbol for each ion

Step 2: find the least common multiple of the charges

Step 3: figure out how many of each ion you need

Step 4: write the formula

Note: if you need more than one polyatomic ion, you MUST use parenthesis around it!!!


Ionic nomenclature the words1
Ionic Nomenclature (the words)

formula to name

non-VOS cation

VOS cation

1) Write the name of the cation

1) Write the name of the cation

1a) Figure out the roman numeral!

2) Write the name of the anion

2) Write the name of the anion

3) The End

3) The End


Ionic nomenclature the words2
Ionic Nomenclature (the words)

formula to name

non-VOS cation

VOS cation

1) Write the name of the cation

1) Write the name of the cation

1a) Figure out the roman numeral!


8 0 magnitude earthquake near samoa 2009

Bi3N5

bismuth

(V)

(V)

nitride

Total cation charges + total anion charges = 0

Bi

N3-

N3-

N3-

Bi

N3-

N3-

Bi

N3-

3x

+

-15

= 0

x = 5 = oxidation state of Bi


8 0 magnitude earthquake near samoa 2009

NiTeO4

nickel

(II)

(II)

telurate

Total cation charges + total anion charges = 0

Ni

TeO42-

TeO42-

x

+

-2

= 0

x = 2 = oxidation state of Ni


8 0 magnitude earthquake near samoa 2009

Co2(CO3)3

cobalt

(III)

(III)

carbonate

Total cation charges + total anion charges = 0

CO32-

CO32-

Co

CO32-

Co

CO32-

2x

+

-6

= 0

x = 3 = oxidation state of Co


8 0 magnitude earthquake near samoa 2009

Pb(CrO4)2

lead

(IV)

(IV)

chromate

Total cation charges + total anion charges = 0

CrO42-

CrO42-

Pb

CrO42-

1x

+

-4

= 0

x = 4 = oxidation state of Pb